X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/655719367ac5e131d9642e5783f3ecf64d1a3385..42e86f64b77d0379f5a4598a4597cf3a43f1988a:/include/wx/ipc.h

diff --git a/include/wx/ipc.h b/include/wx/ipc.h
index c096924fec..5b4b749895 100644
--- a/include/wx/ipc.h
+++ b/include/wx/ipc.h
@@ -9,11 +9,14 @@
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
+#ifndef _WX_IPC_H_
+#define _WX_IPC_H_
+
 // Set wxUSE_DDE_FOR_IPC to 1 to use DDE for IPC under Windows. If it is set to
 // 0, or if the platform is not Windows, use TCP/IP for IPC implementation
 
 #if !defined(wxUSE_DDE_FOR_IPC)
-    #ifdef __WXMSW__
+    #ifdef __WINDOWS__
         #define wxUSE_DDE_FOR_IPC 1
     #else
         #define wxUSE_DDE_FOR_IPC 0
@@ -39,3 +42,4 @@
     #include "wx/sckipc.h"
 #endif // wxUSE_DDE_FOR_IPC/!wxUSE_DDE_FOR_IPC
 
+#endif // _WX_IPC_H_